Some Cermet engine results
#76
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sorry mised the point there, you wouldnt be able to make a thick enough ceramic coating, it may be possible to plasma spray silicon nitride particles with some sort of metalic binder (which would then be a cermet) but who knows what that would be like
#77
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i find this hard to believe, as silicon nitride is used in tooling, and while the the inserts tend to be slightly thicker than a carbide or cermet insert or segment, it isnt radically larger. this is usually solved with using a wisker re-enforced material. im not following you on the coatings being applied part, are you trying to say the ceramic needs to be bonded to softer material, because aluminium is quite soft, relitively of course.
also, on another note, does anyone know what kind of ceramic is used in apex seals?
also, on another note, does anyone know what kind of ceramic is used in apex seals?
#78
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Originally Posted by dufourmike
i find this hard to believe, as silicon nitride is used in tooling, and while the the inserts tend to be slightly thicker than a carbide or cermet insert or segment, it isnt radically larger. this is usually solved with using a wisker re-enforced material. im not following you on the coatings being applied part, are you trying to say the ceramic needs to be bonded to softer material, because aluminium is quite soft, relitively of course.
also, on another note, does anyone know what kind of ceramic is used in apex seals?
also, on another note, does anyone know what kind of ceramic is used in apex seals?
#79
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enough money isnt the problem, i work for a Silni maufacturer. was going to make apex seals as a pet project sometime. also, i can make them at school as we have a microwave sintering funace supplied as a study tool from the same company.
as for the coating i kinda get it, i thought i wold be a physical layer applied like you would paint, but i guess not. just the impression i got from the pictures ive seen as it looks like it would be a couple mils at least.
as for the coating i kinda get it, i thought i wold be a physical layer applied like you would paint, but i guess not. just the impression i got from the pictures ive seen as it looks like it would be a couple mils at least.
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So to bring this thread back.....any more results?
I just found this thread and thought it was great, but noticed the last post was two monthes ago. Has anyone had any more experience with these housings? Any more cool info on cermet coatings? Tim, what are you doing for power now?
#81
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I just got my engine torn down and have damage in bothe housings, I will be sending them to these guys as soon as I have the money, I'll post my finding when it's all done, but it will probly be a while.
#82
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Originally Posted by yodaddy
I just got my engine torn down and have damage in bothe housings, I will be sending them to these guys as soon as I have the money, I'll post my finding when it's all done, but it will probly be a while.
What kind of damage? Was this on a turbo engine? How much boost did it see? How many km. etc?
This does not sound good.
#83
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Originally Posted by IAN
What kind of damage? Was this on a turbo engine? How much boost did it see? How many km. etc?
This does not sound good.
This does not sound good.
#84
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Originally Posted by scathcart
It sounds to me like he tore down a non-coated engine and will be sending his damaged housings to be coated for the first time as an alternative to replacing the housings.
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